.main_body{
	background-color: #72699250;
}
.main_body .left_cont,
.main_body .right_cont {
	display: inline-flex;
	height: 500px;
	justify-content: center;
	align-items: center;
}

.main_body .left_cont {
	margin-top: 30px;
	width: 25%;
}

.main_body .right_cont {
	width: 75%;
}

.main_body .left_cont .item,
.main_body .right_cont .item {
	position: relative;
	display: flex;
	flex-wrap: wrap;
	margin-top: 8%;
	width: 90%;
	height: 90%;
	background-color: #FFFFFF;
	box-shadow: 3px 3px 5px #c6c8a69f;
	text-align: center;
	justify-content: center;
	align-items: center;
	box-shadow: 5px 5px 8px #c6c8a6;
	
}
.main_body .left_cont .item ul{
	padding-bottom: 50px;
}
.main_body .left_cont .item ul li{
	margin-top: 30px;
	list-style: none;
}
footer{
	height: 100px;
	background-color: #72699250;
}


/* finshgamne */
.box {
	position: relative;
	width: 800px;
	height: 374px;
	border: 3px solid #008000;

}

#cav1 {
	width: 100%;
	height: 374px;
	display: block;
	position: absolute;
	border: 1px dotted #0000FF;

}

#cav2 {
	width: 100%;
	height: 374px;
	display: block;
	position: absolute;
	border: 1px solid red;
	z-index: 1;

}

#begingame,
#againgame {
	display: block;
	width: 120px;
	height: 60px;
	font-size: 20px;
	position: absolute;
	left: 50%;
	top: 50%;
	color: #FFFFFF;
	transform: translate(-50%, -50%);
	background-image: linear-gradient(-45deg, #7d79ff, #a29bfe, #74b9ff, #a29bfe, #7d79ff);
	background-size: 450%;
	outline: medium;
	border: none;
	border-radius: 15px;
	z-index: 2;
}

#begingame::before,
#againgame::before {
	content: "";
	position: absolute;
	left: -5px;
	top: -5px;
	bottom: -5px;
	right: -5px;
	background-image: linear-gradient(-45deg, #7d79ff, #a29bfe, #74b9ff, #a29bfe, #7d79ff);
	background-size: 450%;
	border-radius: 15px;
	border: 1px solid yellow;
	filter: blur(15px);
	z-index: -1;
}

#begingame:hover,
#begingame:hover::before,
#againgame:hover,
#againgame:hover::before {
	animation: bSun 6s linear infinite;
	cursor: pointer;
}

#againgame {
	display: none;
}

@keyframes bSun {
	100% {
		background-position: 450% 0;
	}
}
